Adjustable handle for tools



March 20, 1951 c. w. GINTER ADJUSTABLE HANDLE FOR TOOLS Filed May 1,1946 IINV.ENTOR. HALE, W. GflNTE Patented Mar. 20, 1951 7 UNITED STATEDuration of ,Ohio

3 ,Gla'mis.

.-'.-..Mx; se inyentiqnrelat to 'h die for tools, particularly forelectric or pneumaticdrills'or the like so -.that the tool can bereadily held against jumping outof the operators handraaaux l y hand anas e s a pistol grip handle being provided on such tools forthis purpose.

One object of the invention is to provide a handle which is adjustablymounted on the tool so that it can be rotated on the tool to anyconvenient position or a position required in view of adjacent structurelimiting the possible positions that the handle may assume. In prior artdevices it has been common practice to aflix an auxiliary handle to thetool but quite often the position of the handle is such that it is inthe way of adjacent objects and the handle cannot be changed inposition, or if it is of the type that is threaded into any one of aseries of holes around the circumference of the tool it is a time takingprocedure to unscrew it from one hole and screw it into another. Thesedisadvantages are eliminated with my adjustable handle.

A further object of the present invention is to provide a simplearrangement whereby the handle is mounted on the tool for swingingaround to any desired position where it can be locked for use.

Still a further object is to provide a simple and quickly operablelocking means that can lock the handle in any one of an infinite numberof positions around the tool.

With these and other objects in view, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims and illustrated in theaccompanying drawings, wherein:

Figure 1 is a perspective view of a tool to which my adjustable handlehas been applied.

Figure 2 is a side elevation thereof with a mounting ring for theadjustable handle shown in section.

Figure 3 is a front elevation looking in a lefthand direction at Figure2, and

Figure 4 is an enlarged sectional view on the line 4-4 of Figure 2showing a locking shoe and. the means for looking it.

On the accompanying drawings I have used the reference numeral toindicate an electric or pneumatic motor adaptable for performing variouswork such as drilling operations in which case a drill chuck I2 ismounted on the shaft M of the motor. A tool motor of this characterusually ,Aro Equipment corpora 2,545,655 21 f- I j v IAnJ s'rABLEEnnis-ma To oLs Charles w.dimer,Bryan 0 i ?i11ie i i has-apistol griphandle It for the-purpose'of holding the tool, the handle having atrigger l8 for controlling an electric switch or'a compressed J lv Atool of the'kind'just disclo'sed cannotbeheld with only "one handconveniently and especially when large drills are being usedthe tool isapt to twist out of the hand of the operator. An auxiliary handle can beprovided which is a great aid in preventing the undesirable twisting ofthe tool out of the operators hand as the operator can then use hisother hand on the auxiliary handle to hold the tool firmly in bothhands. Heretofore auxiliary handles, however, have not been adjustableso that they can be conveniently and quickly projected in any directionfrom the tool.

My invention comprises provision of an auxiliary handle 20 which ismounted on the motor Ill by means of a band 22 having a boss 24internally screw threaded as shown in Figure 4 to receive a stud 26 onthe inner end of the auxiliary handle 20. The band 22 seats in a groove28 around the housing of the motor 18 and the ring may be held assembledin the groove by an end plate 30 detachably mounted on the motor housingas by screws 32.

The ring 22 is normally freely rotatable on the housing of th motor it]but may be locked relative thereto by 'means of a locking shoe 34. Thelocking shoe 3 frictionally engages the bottom of the groove 28 wheneverthe handle 20 is rotated for screwing the stud into the boss 24. Thisfrictional engagement of the shoe 34 with a portion of the bottom of thegroove 28 causes the An auxiliary handle adjustable in the mannerdisclosed provides for readily unlocking by a twist on the handle 253 sothat the handle can be moved to any position where it does not interferewith adjacent objects during drilling or other operations. When the newposition is reached the auxiliary handle may be quickly locked again byslight rotation in the opposite direction, thus making for a convenientrigid auxiliary handle that can be quickly adjusted in a minimum oftime.

Some changes may be made in the construction and arrangement of theparts of my device with out departing from the real spirit and purposeof my invention, and it is my intention to cover by my claims anymodified forms of structure or use of mechanical equivalents which maybe reasonably included within their scope.

I claim as my invention:

1. For use with a tool comprising a motor having an annular grooveitherearound and ahandle projecting from said motor at a position spacedfrom said groove, an auxiliary handle comprising a ring rotatablymounted in said groove, "a handle elementcarried by said for lockingsaid ring in said groove.

2. For use with a tool comprising a motorjhaving an annular groovetherearound and a handle projecting from said motor at a position spacedfrom said groove, an auxiliary handle comprising a ring rotatablymounted in said groove,-a;ha.nd1e element carried by said ring, andmeans for locking said .ring ,in said groove, said means being operatedby rotation of .said handle element.

.3. For use with a tool comprising a motor having an annular groovetherearound and aihandle projecting .from said .motor at a positionspaced from said groove, an auxiliary handle .comprising a ringrotataloly mounted "in said groove, a

handle element carried by said ring, and means for locking said ring insaid groove, said means comprising a portion of said handle elementthreaded in said ring and a shoe in said annular groove and engaged bysaid portion of said handle element.

CHARLES W. GINTER.

REFERENCES CITED The following references are of record in the file ofthis patent:

"UNITED STATES PATENTS Number Name Date "736,101 Hough Aug. 11, 1903935,730 Bacon v Oct. 5, 1909 :98'fig'i9fi EBehm Mar. 14, 1911 1,041,979Dikeman Oct. 22,1912 "1,0731565 Biehl Sept. 16, 1913 1,468,659 CohenSept. 25,1923 156673579 iweig -Ap1.2l,i1928 2 275,875 Werfel Mar.10,1942

2,29%;772 "Milberg Oct. "13, 1952 "2,825,841 Faber Aug. 3, $943$2,377,641 Grampton June'*5,=1945

